psiprobe.controllers.logs.LogHandlerController.java Source code

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Here is the source code for psiprobe.controllers.logs.LogHandlerController.java

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/**
 * Licensed under the GPL License. You may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 *
 * THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
 * WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE.
 */
package psiprobe.controllers.logs;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.bind.ServletRequestUtils;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.ParameterizableViewController;

import psiprobe.beans.LogResolverBean;
import psiprobe.tools.logging.LogDestination;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * The Class LogHandlerController.
 *
 * @author Vlad Ilyushchenko
 * @author Mark Lewis
 */
public class LogHandlerController extends ParameterizableViewController {

    /** The Constant logger. */
    private static final Logger logger = LoggerFactory.getLogger(LogHandlerController.class);

    /** The log resolver. */
    private LogResolverBean logResolver;

    /**
     * Gets the log resolver.
     *
     * @return the log resolver
     */
    public LogResolverBean getLogResolver() {
        return logResolver;
    }

    /**
     * Sets the log resolver.
     *
     * @param logResolver the new log resolver
     */
    public void setLogResolver(LogResolverBean logResolver) {
        this.logResolver = logResolver;
    }

    @Override
    protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response)
            throws Exception {

        String logType = ServletRequestUtils.getStringParameter(request, "logType");
        String webapp = ServletRequestUtils.getStringParameter(request, "webapp");
        boolean context = ServletRequestUtils.getBooleanParameter(request, "context", false);
        boolean root = ServletRequestUtils.getBooleanParameter(request, "root", false);
        String logName = ServletRequestUtils.getStringParameter(request, "logName");
        String logIndex = ServletRequestUtils.getStringParameter(request, "logIndex");

        LogDestination dest = logResolver.getLogDestination(logType, webapp, context, root, logName, logIndex);

        ModelAndView modelAndView = null;
        boolean logFound = false;
        if (dest != null) {
            if (dest.getFile() != null && dest.getFile().exists()) {
                modelAndView = handleLogFile(request, response, dest);
                logFound = true;
            } else {
                logger.error("{}: file not found", dest.getFile());
            }
        } else {
            logger.error("{}{} log{} not found", logType, (root ? " root" : ""),
                    (root ? "" : " '" + logName + "'"));
        }
        if (!logFound) {
            response.sendError(404);
        }
        return modelAndView;
    }

    /**
     * Handle log file.
     *
     * @param request the request
     * @param response the response
     * @param logDest the log dest
     * @return the model and view
     * @throws Exception the exception
     */
    protected ModelAndView handleLogFile(HttpServletRequest request, HttpServletResponse response,
            LogDestination logDest) throws Exception {

        return new ModelAndView(getViewName()).addObject("log", logDest);
    }

}